diff --git a/Filelist.txt b/Filelist.txt
index 233e9e0e..fcca90c0 100644
--- a/Filelist.txt
+++ b/Filelist.txt
@@ -142,6 +142,8 @@ gzip.h
 hashfwd.h
 hc128.cpp
 hc128.h
+hc256.cpp
+hc256.h
 hex.cpp
 hex.h
 hight.h